<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .container {
            display: flex;
            justify-content: center;
            align-items: center;
            width: 600px;
            height: 600px;
            background-color: silver;
        }

        .content {
            width: 200px;
            /*height: 200px;*/
            background-color: navajowhite;
        }
    </style>
</head>
<body>
<div class="container">
    <div class="content">
        hello world my name is my
        hello world my name is my
        hello world my name is my
        hello world my name is my
        hello world my name is my
        hello world my name is my
        hello world my name is my
    </div>
</div>
</body>
</html>
